This comprehensive Komatsu GD670AW-1 Motor Grader Factory Service Repair Manual is a valuable resource for anyone who owns or maintains this type of heavy equipment. Covering serial numbers from 200840 through 202000, the manual provides detailed step-by-step instructions and illustrations to guide users through all aspects of service, maintenance, repair, and tuning.

From fundamental maintenance procedures to complex repairs, this manual equips users with the knowledge and expertise to confidently address any issue. It delves into various critical components, including the articulation joint assembly, Char-Lynn orbitrol unit, transmission power shift (Funk 2263E130B), all-wheel drive pump (Rexroth), circle reverse motor (Danfoss), steering and brake pump (Eaton model 70422 RDU), hydraulic motors (Vickers), control valve manifolds (Husco 5000C series), hydraulic cylinders, accumulators, and more.

The manual also includes a comprehensive troubleshooting section with detailed diagrams and charts to assist in diagnosing and resolving technical problems. Detailed wiring diagrams are provided for easy understanding of the machine's electrical system, facilitating proper troubleshooting and repairs.

This service manual is an essential tool for professionals and individuals who want to perform their own maintenance and repair work on Komatsu GD670AW-1 Motor Graders. The comprehensive and detailed information allows users to gain a deep understanding of the machine's operation and identify potential issues before they become major problems. By utilizing the knowledge contained in this manual, users can save time, money, and effort while ensuring their Komatsu GD670AW-1 Motor Grader operates at peak performance.

The Komatsu GD670AW-1 is a robust and versatile motor grader designed for heavy-duty construction and earthmoving applications. This powerful machine boasts a 174 kW (233 hp) Komatsu SAA6D114E-2 engine, providing ample power for demanding tasks. Its innovative "auto-shift" transmission offers seamless gear changes, maximizing efficiency and operator comfort. The GD670AW-1 features a spacious and ergonomically designed operator's cab, equipped with advanced control systems for precise blade manipulation and operator comfort. The grader's long reach and powerful hydraulic system enable efficient and accurate grading, shaping, and leveling operations. It also boasts a low operating cost thanks to its fuel-efficient engine and long service intervals.

Furthermore, the Komatsu GD670AW-1 is built with durability and reliability in mind. Its heavy-duty construction and robust components ensure long-lasting performance even in the most challenging conditions. The machine's advanced safety features, including a rollover protective structure (ROPS) and an optional falling object protective structure (FOPS), prioritize operator safety. The GD670AW-1's versatility and reliability make it an indispensable asset for diverse construction projects, including road building, site preparation, and infrastructure development. With its impressive power, efficient operation, and operator-focused design, the Komatsu GD670AW-1 continues to be a highly sought-after motor grader for contractors and operators worldwide.